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Textile Engineering Gate 2017 Questions with Answer

Ques 53 GATE 2017

The ratio of wet-strength to dry-strength of viscose fibre is

A

Equal to one

B

Always less than one

C

Always greater than one

D

Sometimes greater and sometimes less than one


(b) is the correct answer.

Ques 54 GATE 2017

What factor does the theoretical limit for mass irregularity (CVlim) of a cotton yarn not depend on?

A

Mean fibre length

B

Mean fibre fineness

C

Mean yarn count

D

Coefficient of variation of fibre fineness


(c) is the correct answer.

Ques 55 GATE 2017

While measuring tensile properties using Stelometer at 3.2 mm gauge length, a cotton fibre bundle of 15 mm length and 4.5 mg weight registers a breaking load of 6 kg. The bundle tenacity (g/tex) is


(19.9 to 20.1) is the correct answer.

Ques 56 GATE 2017

The tenacity of a two-fold yarn is 1.1 times the tenacity of its component single yarn. The breaking load of the two-fold yarn is X times the breaking load of its single component yarn. Neglecting length contraction due to twist, the value of X, accurate to one decimal place, is


(2.1 to 2.3) is the correct answer.

Ques 57 GATE 2017

The compressive pressure applied onto a fabric is inversely proportional to the cube of thickness of the fabric. If the thickness is halved during compression, then the pressure increases by times.


(6.9 to 8.1) is the correct answer.

Ques 58 GATE 2017

The coefficient of correlation between packing density and porosity of a set of yarns is


(-1.01 to -0.99) is the correct answer.

Ques 59 GATE 2017

Keeping card production same, the quality of carding will improve by setting

A

Higher doffer rpm and coarser sliver hank

B

Higher doffer rpm and finer sliver hank

C

Lower doffer rpm and coarser sliver hank

D

Lower doffer rpm and finer sliver hank


(b) is the correct answer.

Ques 60 GATE 2017

The tenacity of
P. Carded sliver
Q. First drawn sliver
R. Second drawn sliver
S. Combed sliver
follows the order

A

P>Q>R>S

B

S>R>Q>P

C

R>S>P>Q

D

Q>R>S>P


(a) is the correct answer.

Ques 61 GATE 2017

For a given yarn fineness, use of ring traveller of too small a mass gives

A

Small balloon size but more yarn content on the bobbin

B

Small balloon size but less yarn content on the bobbin

C

Big balloon size but more yarn content on the bobbin

D

Big balloon size but less yarn content on the bobbin


(d) is the correct answer.

Ques 62 GATE 2017

In cotton combing process, the counter-feed system gives

A

Low removal of noil and low elimination of impurities

B

Low removal of noil and high elimination of impurities

C

High removal of noil and low elimination of impurities

D

High removal of noil and high elimination of impurities


(d) is the correct answer.

Ques 63 GATE 2017

A 30 tex open-end rotor yarn having 650 twist per meter is produced using 33 mm rotor diameter and 120,000 rotor rpm. The rotational speed of the peel-off point is $\times 10^{3}$ rpm.


(121 to 123) is the correct answer.

Ques 64 GATE 2017

A bobbin lead roving frame is running at 25 m/min delivery speed and 1250 rpm spindle speed. The rotational speed of the bobbin, at the instant of 0.10 m bobbin diameter, accurate to two decimal places, is $\times 10^{3}$ rpm.


(1327 to 1331) is the correct answer.

Ques 65 GATE 2017

Let a cheese of 160 mm traverse length be wound on a rotary traverse machine having a drum of 75 mm diameter and 2.5 crossings. If the drum rotates at 3250 rpm, then the coil angle, in degrees, accurate to one decimal place, is


(73.5 to 76.0) is the correct answer.

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